Gee has spent the last week working on his mechanics with pitching coach Dan Warthen. Gee said the adjustment involved when he separates his hands during his delivery. The revision helps prevent his arm from dragging during the delivery.
"The ball was coming out of my hand a lot better than normal," Gee said.
"The thing about J.J. is, he's pitched a lot games, he's been through a lot of spring trainings, he's saved a lot of games, and I think that when the season starts it'll be a whole different game for him," Gibson said, per The Arizona Republic. "He's one of those guys."
Though, scouts have reported Putz's fastball has ranged from 86-90 mph this spring. He averaged 91.7 mph on his fastball last season, according to Pitch-f/x data.
"His velocity probably isn't where he wants it, but it's been there before," Gibson said.
Murphy is batting .133 (2 for 15) with one triple and two RBI through six spring games.
"Exciting day for all of us," general manager John Mozeliak said. "A lot went into this. ... We made a very conscious effort over the past year to start to understand the Cuba market, to start to understand how we could put our fingerprints on this. All along we targeted middle infielders if that was something we could do to improve our organization.
"We feel pretty confident this is a good fit for the organization. One of the things we're always trying to do is add depth."
The 23-year-old Diaz is expected to open the season in the minors, possibly Double-A, and will make his spring debut once the Cardinals are certain he's physically ready for game-speed competition.
"We plan on being patient with him," Mozeliak said. "He hasn't played baseball in really over a year and a half competitively. We're not looking for him to put his fingerprints on the major-league team tomorrow. We can give him time to develop and let him from a talent standpoint take his time to get back to where he was and I think from our organizational standpoint that's a great fit for us at this time."